Scattering tomography and its application to sooting diffusion flames

Journal Article · Tue Feb 01 04:00:00 EST 1994 · Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.2910848· OSTI ID:7045528

Menguec, M P; Dutta, P ^[1]

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1. Univ. of Kentucky, Lexington, KY (United States)

A new analytical tomographic reconstruction technique was developed for the determination of the extinction and scattering coefficient distributions in axisymmetric media. This method, called [open quotes]scattering tomography,[close quotes] was tested for several particle concentration profiles corresponding to those for diffusion flames. After that, a series of experiments were performed on sooting acetylene flames using an argon-ion laser nephelometer. The experimental results were reduced using both the transmission and scattering tomography techniques to obtain the extinction coefficient profiles. It was shown that in the center of the flame, the results from these two approaches were in good agreement. Scattering tomography can be used to determine both the absorption and scattering coefficient distributions in the medium. In addition to that, it is preferable over the transmission tomography if the medium is optically very thin and particles are predominantly scattering. 20 refs., 10 figs.

• DOE Contract Number: FG22-87PC79916
• OSTI ID: 7045528
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 116:1; ISSN JHTRAO; ISSN 0022-1481
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
ACETYLENE
ALKYNES
AXIAL SYMMETRY
CHEMICAL REACTIONS
COMBUSTION
DIAGNOSTIC TECHNIQUES
DIFFUSION
ENERGY TRANSFER
FLAMES
HEAT TRANSFER
HYDROCARBONS
ORGANIC COMPOUNDS
OXIDATION
RADIANT HEAT TRANSFER
SCATTERING
SOOT
SYMMETRY
THERMOCHEMICAL PROCESSES
TOMOGRAPHY
TRANSMISSION